7 points a bag holds 4 red, 5 yellow, and 3 purple marbles. what is the probability of choosing a purple marble.

A: 1/6
B: 6/18
C: 3/20
D: 1/19

8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals

Hurry if the population of of an ant hill doubles every 10 days and there are currently 100 ants living in the ant hill what will the ant population be in 20 days

Four quarts of a latex enamel paint will cover about 200 square feet of wall surface. how many quarts are needed to cover 98 square feet of kitchen wall and 52 square feet of bathroom wall